JP5659288B1 - Method for producing transparent resin composition containing polycarbonate resin and acrylic resin - Google Patents

Method for producing transparent resin composition containing polycarbonate resin and acrylic resin Download PDF

Info

Publication number
JP5659288B1
JP5659288B1 JP2013268210A JP2013268210A JP5659288B1 JP 5659288 B1 JP5659288 B1 JP 5659288B1 JP 2013268210 A JP2013268210 A JP 2013268210A JP 2013268210 A JP2013268210 A JP 2013268210A JP 5659288 B1 JP5659288 B1 JP 5659288B1
Authority
JP
Japan
Prior art keywords
resin
resin composition
transparent resin
screw
kneading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2013268210A
Other languages
Japanese (ja)
Other versions
JP2015123622A (en
Inventor
昭美 小林
昭美 小林
重行 藤井
重行 藤井
孝文 鮫島
孝文 鮫島
博 清水
博 清水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
HSP Technologies Inc
Original Assignee
Toshiba Machine Co Ltd
HSP Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2013268210A priority Critical patent/JP5659288B1/en
Application filed by Toshiba Machine Co Ltd, HSP Technologies Inc filed Critical Toshiba Machine Co Ltd
Priority to KR1020167016503A priority patent/KR101837878B1/en
Priority to PCT/JP2014/081584 priority patent/WO2015098428A1/en
Priority to DE112014006029.1T priority patent/DE112014006029B4/en
Priority to CN201480070667.7A priority patent/CN105873736B/en
Priority to TW103145506A priority patent/TWI547359B/en
Application granted granted Critical
Publication of JP5659288B1 publication Critical patent/JP5659288B1/en
Publication of JP2015123622A publication Critical patent/JP2015123622A/en
Priority to US15/192,359 priority patent/US9688001B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/487—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with consecutive casings or screws, e.g. for feeding, discharging, mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/385—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary fluid mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/575—Screws provided with elements of a generally circular cross-section for shearing the melt, i.e. shear-ring elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/286—Raw material dosing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/54—Screws with additional forward-feeding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/55—Screws having reverse-feeding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04—Polymers of esters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent

Abstract

【課題】本発明は、ポリカーボネート樹脂とアクリル樹脂を含む透明樹脂組成物の製造方法に係り、連続してポリカーボネート樹脂とアクリル樹脂を混練し、透明樹脂組成物を得ることができる透明樹脂組成物の製造方法を提供する。【解決手段】本発明による透明樹脂組成物の製造方法は、ポリカーボネート樹脂Ａとアクリル樹脂Ｂを二軸押出機１３に連続的に供給して溶融混合樹脂Ｃを生成し、引き続き、せん断処理部４３が設けられた混練用スクリュ４２を有する単軸押出機１５に供給し、５００ｒｐｍ以上かつ４０００ｒｐｍ以下で回転するせん断処理部４３により溶融混合樹脂Ｃを混練して透明樹脂組成物Ｄを得る。【選択図】図1The present invention relates to a method for producing a transparent resin composition comprising a polycarbonate resin and an acrylic resin, and relates to a transparent resin composition capable of continuously kneading a polycarbonate resin and an acrylic resin to obtain a transparent resin composition. A manufacturing method is provided. A method for producing a transparent resin composition according to the present invention is to continuously supply a polycarbonate resin A and an acrylic resin B to a twin screw extruder 13 to produce a molten mixed resin C, and subsequently to a shear processing section 43. Is supplied to a single-screw extruder 15 having a kneading screw 42, and the melt-mixed resin C is kneaded by a shearing unit 43 that rotates at 500 rpm or more and 4000 rpm or less to obtain a transparent resin composition D. [Selection] Figure 1

Description

本発明は、ポリカーボネート樹脂とアクリル樹脂を含む透明樹脂組成物の製造方法に関する。 The present invention relates to a method for producing a transparent resin composition containing a polycarbonate resin and an acrylic resin.

従来、ポリカーボネート樹脂は透明性、寸法安定性、耐衝撃性等に優れ、自動車、電気機器や住宅等の分野において多用されている。また、ポリカーボネート樹脂は、上述の特性は優れているものの、表面硬度や耐ＵＶ性が劣ることから、アクリル樹脂とのブレンドに関する研究開発が進められている。
特許文献１には、ポリカーボネートとメタクリル系樹脂のブレンドに関し、内部帰還型スクリュを有する高せん断成形装置により混練して、透明樹脂材を得たことが開示されている。ポリカーボネートとメタクリル系樹脂を融点近傍の２００〜２４０℃で溶融混練し、直径３００ｎｍ以下好ましくは１００ｎｍ以下のメタクリル系樹脂の分散相がポリカーボネートマトリクス相に均一かつ密に分散するナノ分散構造とすることにより、透明化を達成している。また一方で、二軸の溶融混練機等を用いて混合すると、可視領域の波長より分散相のサイズが大きくなり、白濁して不透明となることも開示されている。 Conventionally, a polycarbonate resin is excellent in transparency, dimensional stability, impact resistance, and the like, and is frequently used in the fields of automobiles, electrical equipment, houses, and the like. Further, although the polycarbonate resin is excellent in the above-described properties, the surface hardness and UV resistance are inferior, and therefore, research and development relating to blending with an acrylic resin is underway.
Patent Document 1 discloses that a blend of polycarbonate and methacrylic resin was kneaded by a high shear molding apparatus having an internal feedback screw to obtain a transparent resin material. By melting and kneading a polycarbonate and a methacrylic resin at 200 to 240 ° C. near the melting point, a nano-dispersed structure in which a dispersed phase of a methacrylic resin having a diameter of 300 nm or less, preferably 100 nm or less, is uniformly and densely dispersed in the polycarbonate matrix phase. , Has achieved transparency. On the other hand, it is also disclosed that when the mixture is mixed using a biaxial melt kneader or the like, the size of the dispersed phase becomes larger than the wavelength in the visible region, and it becomes cloudy and opaque.

ＷＯ２０１０／０６１８７２号公報WO2010 / 061872

しかしながら、特許文献１の内部帰還型スクリュを有する高せん断成形装置はバッチ式の成形装置であり、しかも２〜５ｇの原料を混練するのに２分を要していることから、押出機等の従来の連続式の製造装置に比べて生産効率が悪く、現実的には、連続して樹脂製品を製造する生産ラインに適用することは困難である。
本発明は、上述した従来技術の現状に鑑み、連続してポリカーボネート樹脂とアクリル樹脂を混練し、連続して透明樹脂組成物を得ることができる透明樹脂組成物の製造方法を提供することを課題とする。 However, the high shear molding apparatus having the internal feedback screw of Patent Document 1 is a batch type molding apparatus, and it takes 2 minutes to knead 2 to 5 g of raw material. The production efficiency is lower than that of a conventional continuous manufacturing apparatus, and in reality, it is difficult to apply to a production line that continuously manufactures resin products.
In view of the present state of the prior art described above, the present invention provides a method for producing a transparent resin composition capable of continuously kneading a polycarbonate resin and an acrylic resin and continuously obtaining a transparent resin composition. And

前記目的を達成するための本発明による透明樹脂組成物の製造方法は、ポリカーボネート樹脂とアクリル樹脂を含む透明樹脂組成物の製造方法であって、ポリカーボネート樹脂９５〜６０重量％とアクリル樹脂５〜４０重量％を二本の噛み合いスクリュが６００ｒｐｍ以下で同方向に回転する二軸押出機に連続的に供給し、溶融および混合してポリカーボネート樹脂とアクリル樹脂の溶融混合樹脂を生成し、二軸押出機より連続して吐出される溶融混合樹脂を、引き続き、基端部から先端部に向けて送りフライトが形成され中間部にせん断処理部が設けられた混練用スクリュと混練用スクリュを回転可能に挿通するシリンダを有する単軸押出機に供給し、５００ｒｐｍ以上かつ４０００ｒｐｍ以下で回転するせん断処理部により溶融混合樹脂を混練して透明樹脂組成物を生成し、単軸押出機より透明樹脂組成物を連続して吐出することを特徴とする。 The method for producing a transparent resin composition according to the present invention for achieving the above object is a method for producing a transparent resin composition comprising a polycarbonate resin and an acrylic resin, wherein the polycarbonate resin is 95 to 60% by weight and the acrylic resin is 5 to 40. Continuously supply 2% by weight to a twin screw extruder in which two meshing screws rotate in the same direction at 600 rpm or less, and melt and mix to produce a molten mixed resin of polycarbonate resin and acrylic resin. The melt-mixed resin that is discharged more continuously continues to feed the kneading screw and the kneading screw, in which the flight is formed from the base end to the tip, and the shearing section is provided in the middle. Supplied to a single-screw extruder having a cylinder to be melted and mixed with a shearing section rotating at 500 rpm or more and 4000 rpm or less. Kneaded to produce a transparent resin composition, characterized by discharging continuously from transparent resin composition single-screw extruder.

本発明によれば、連続してポリカーボネート樹脂とアクリル樹脂を混練して透明樹脂組成物を得ることができるので、連続して樹脂製品を製造する生産ラインに適用することができる。 According to the present invention, since a transparent resin composition can be obtained by kneading a polycarbonate resin and an acrylic resin continuously, it can be applied to a production line for continuously producing resin products.

本発明の製造方法に適用される製造装置１０の概略図である。It is the schematic of the manufacturing apparatus 10 applied to the manufacturing method of this invention. 本発明の製造方法に適用される単軸押出機１５のスクリュ４２の概略図である。It is the schematic of the screw 42 of the single screw extruder 15 applied to the manufacturing method of this invention. 本発明の製造方法に適用される単軸押出機１５のスクリュ４２の他の実施形態を示す概略図である。It is the schematic which shows other embodiment of the screw 42 of the single screw extruder 15 applied to the manufacturing method of this invention.

以下、本発明の実施の形態を図１、図２および図３を参照して説明する。
図１は、本発明の透明樹脂組成物の製造方法を実施する際に適用される製造装置１０の概略図である。
製造装置１０は、単位時間当たりの供給量を９５〜６０重量％の範囲に設定されたポリカーボネート樹脂Ａを連続して供給する原料供給装置１１と、単位時間当たりの供給量を５〜４０重量％の範囲に設定されたアクリル樹脂Ｂを連続して供給する原料供給装置１２と、 供給されたポリカーボネート樹脂Ａとアクリル樹脂Ｂを連続して溶融および混合する ことにより溶融混合樹脂Ｃを生成して吐出する二軸押出機１３と、吐出された溶融混合樹脂Ｃが流通する単管１４と、単管１４より供給された溶融混合樹脂Ｃを連続して混練することにより透明樹脂組成物Ｄを生成して吐出する単軸押出機１５を備えている。
二軸押出機１３は、バレル２０と、バレル２０の内孔２１に挿通され、互いに噛み合いながら同方向に回転する二本の噛み合いスクリュ２２を有している。噛み合いスクリュ２２の基端部側となるバレル２０の長手方向の一端側には、内孔２１に通ずる原料供給口２３が設けられている。ポリカーボネート樹脂Ａとアクリル樹脂Ｂは、原料供給装置１１、１２から原料供給口２３を通じて内孔２１に連続して供給される。噛み合いスクリュ２２の先端部側となるバレル２０の長手方向の他端側には、単管１４が接続されている。バレル２０の外周には、バレル２０を加熱するヒータ２４が取り付けられている。
噛み合いスクリュ２２は図示しない駆動モータにより回転する。原料供給口２３を通じて内孔２１に連続して供給されるポリカーボネート樹脂Ａとアクリル樹脂Ｂは、噛み合いスクリュ２２の基端部側から、バレル２０の内孔２１内を通過して、先端部側に連続して搬送される。この通過の間に、ポリカーボネート樹脂Ａとアクリル樹脂Ｂは噛み合いスクリュ２２の回転とヒータ２４の加熱により溶融および混合され溶融混合樹脂Ｃとなる。
二軸押出機１３より連続して吐出される溶融混合樹脂Ｃは、管状の単管１４の内孔３０を流通して、引き続き、単軸押出機１５に供給される。単管１４の外周には、溶融混合樹脂Ｃの溶融状態を維持するために、単管１４を加熱するヒータ３１が取り付けられている。
単軸押出機１５は、シリンダ４０と、シリンダ４０の内孔４１に挿通される混練用スクリュ４２を有している。混練用スクリュ４２は、長手方向の中間部にせん断処理部４３を有している。せん断処理部４３の詳細については、後述する。混練用スクリュ４２の基端部側となるシリンダ４０の長手方向の一端側には、内孔４１に通ずる溶融樹脂供給口４４が設けられている。単管１４とシリンダ４０は内孔３０と溶融樹脂供給口４４が連通するように接続され、単管１４を流通する溶融混合樹脂Ｃは溶融樹脂供給口４４を通じて内孔４１に連続して供給される。混練用スクリュ４２の先端部側となるシリンダ４０の長手方向の他端側にはダイ４５が設けられている。シリンダ４０の外周には、シリンダ４０を加熱するヒータ４６が取り付けられている。
図２は、本発明の透明樹脂組成物の製造方法を実施する際に適用される単軸押出機１５の混練用スクリュ４２の概略図である。
混練用スクリュ４２は、長手方向の中間部にせん断処理部４３を有し、基端部からせん断処理部４３までの間とせん断処理部４３から先端部までの間は、山径と谷径が一定の値とされた送りフライト４７が形成されている。せん断処理部４２は、送りフライト４７のねじれの向きと逆の向きに連続して形成された逆送りフライト４８を有している。逆送りフライト４８は２山以上かつ５山以下であって、その一端から他端までの間に溝や切欠き等が無く、連続して一様に形成されている。
単管１４を流通して、溶融樹脂供給口４４からシリンダ４０の内孔４１に連続して供給される溶融混合樹脂Ｃは、図示しない駆動モータにより回転する混練用スクリュ４２により、基端部からせん断処理部４３まで搬送される。せん断処理部４３では、溶融混合樹脂Ｃは、内孔４１の周壁と逆送りフライト４８の外周との間を通過する。この通過の際に、溶融混合樹脂Ｃは、せん断作用を受けて混練され、ポリカーボネート樹脂中にアクリル樹脂が均一かつ密に分散し、ポリカーボネート樹脂とアクリル樹脂を含む透明樹脂組成物Ｄが生成される。
生成された透明樹脂組成物Ｄは混練用スクリュ２２のせん断処理部４３から先端部に搬送され、単軸押出機１５の先端に接続されたダイ４５の連通する樹脂流路へと吐出される。そして、透明樹脂組成物Ｄはダイ４５により所定の形状に賦形されつつ押し出される。
図３は、本発明の透明樹脂組成物の製造方法を実施する際に適用される単軸押出機１５の混練用スクリュ４２の他の実施形態を示す概略図である。
混練用スクリュ４２は、長手方向の中間部にせん断処理部４３を有し、基端部からせん断処理部４３までの間とせん断処理部４３から先端部までの間は、山径と谷径が一定の値とされた送りフライト４７が形成されている。せん断処理部４３は、混練用スクリュ４２の半径方向に対して立設されかつ周方向に連続して形成された円環状突出部４９を有している。円環状突出部４９は、周方向に溝や切欠き等が無く、連続して一様に形成されている。
単管１４を流通して、溶融樹脂供給口４４からシリンダ４０の内孔４１に連続して供給される供給溶融混合樹脂Ｃは、図示しない駆動モータにより回転する混練用スクリュ４２により、基端部からせん断処理部４３まで搬送される。せん断処理部４３では、溶融混合樹脂Ｃは、内孔４１の周壁と円環状突出部４９の外周との間を通過する。この通過の際に、溶融混合樹脂Ｃは、せん断作用を受けて混練され、ポリカーボネート樹脂中にアクリル樹脂が均一かつ密に分散し、ポリカーボネート樹脂とアクリル樹脂を含む透明樹脂組成物Ｄが生成される。
生成された透明樹脂組成物Ｄは混練用スクリュ２２のせん断処理部４３から先端部に搬送され、単軸押出機１５の先端に接続されたダイ４５の連通する樹脂流路へと吐出される。そして、透明樹脂組成物Ｄはダイ４５により所定の形状に賦形されつつ押し出される。
なお、単軸押出機１５の混練用スクリュ４２の外径は、二軸押出機１３の噛み合いスクリュ２２の外径よりも大きい。また、せん断処理部４３は、混練用スクリュの長手方向の１か所に設けるだけでなく、状況に応じて複数か所にそれぞれ設けても良い。
次に、本発明の透明樹脂組成物の製造方法について説明する。
製造装置１０の原料供給装置１１に原料となるポリカーボネート樹脂Ａを投入し、原料供給装置１２に原料となるアクリル樹脂Ｂに投入する。ポリカーボネート樹脂Ａは、単位時間当たり９５〜６０重量％の範囲で、所定の量を供給するように設定された原料供給装置１１により計量され、二軸押出機１３に連続して供給される。同様に、アクリル樹脂Ｂも、単位時間当たり５〜４０重量％の範囲で、所定の量を供給するように設定された原料供給装置１２により計量され、二軸押出機１３に連続して供給される。
二軸押出機１３のバレル２０の内孔２１に連続して供給されたポリカーボネート樹脂Ａとアクリル樹脂Ｂは、駆動モータにより回転する２本の噛み合いスクリュ２２により先端部側に搬送されつつ、溶融および混合される。この時のバレル２０の温度は２４０〜３００℃に設定され、噛み合いスクリュ２２の回転数は５０〜６００ｒｐｍとなるように設定される。
二軸押出機１３は、固相のポリカーボネート樹脂Ａとアクリル樹脂Ｂから液相の溶融混合樹脂Ｃを連続して生成する。この段階の溶融混合樹脂Ｃは、アクリル樹脂Ｂがポリカーボネート樹脂Ａに均一かつ密に分散しておらず、白濁した状態となっている。
二軸押出機１３より吐出された溶融混合樹脂Ｃは、大気中に放出すること無く、引き続き、単管１４の内孔３０を通して単軸押出機１５に供給される。単管１４は、溶融混合樹脂Ｃが溶融状態を維持するように、加熱温度を２２０〜２８０℃に設定されたヒータ３１により加熱される。
単軸押出機１５のシリンダ４０の内孔４１に連続して供給される溶融混合樹脂Ｃは、駆動モータにより回転する混練用スクリュ４２により基端部側から中間部に設けられたせん断処理部４３へと搬送される。このとき、シリンダ４０の温度は２２０〜２８０℃に設定され、混練用スクリュ４２の回転数は５００ｒｐｍ〜４０００ｒｐｍとなるように設定される。
単軸押出機１５の混練用スクリュ４２の外径が二軸押出機１３の噛み合いスクリュ２２の外径よりも大きく、混練用スクリュ４２の回転数が５００ｒｐｍ〜４０００ｒｐｍとなるように設定されることから、連続して供給される溶融混合樹脂Ｃは、混練用スクリュ４２の送りフライト４７の間に充満した状態ではなく、非充満の状態で搬送される。そして、送りフライト４７の山径と谷径が一定の値とされていることから、安定した状態で搬送される。
せん断処理部４３に到達した溶融混合樹脂Ｃは、一般的な押出成形で設定される単軸押出機のスクリュ回転数よりも高い５００ｒｐｍ〜４０００ｒｐｍで回転するせん断処理部４３の外周とシリンダ４０の内孔４１の周壁との間を通過する際に、短時間で強力なせん断作用を受けて混練され、ポリカーボネート樹脂Ａ中にアクリル樹脂Ｂが均一かつ密に分散し、ポリカーボネート樹脂Ａとアクリル樹脂Ｂを含む透明樹脂組成物Ｄが生成される。
生成された透明樹脂組成物Ｄは山径と谷径が一定とされた送りフライト４７により安定して先端部に搬送され、所定の形状を賦形するダイ４５より押し出される。
本発明の透明樹脂組成物の製造方法は、製造装置１０の前段の二軸押出機１３が溶融および混合する工程を担い、後段の単軸押出機１５が混練する工程を担うことから、溶融および混合時の噛み合いスクリュ２２の回転数を含んだ製造条件と、短時間で強力なせん断作用を付与する混練時の混練用スクリュ４２の回転数を含んだ製造条件を、関連付けつつも個別に設定できるので、安定して連続生産することが可能となる。 Hereinafter, embodiments of the present invention will be described with reference to FIG. 1, FIG. 2 and FIG.
FIG. 1 is a schematic view of a production apparatus 10 applied when carrying out the method for producing a transparent resin composition of the present invention.
The production apparatus 10 includes a raw material supply apparatus 11 that continuously supplies a polycarbonate resin A whose supply amount per unit time is set in a range of 95 to 60% by weight, and a supply amount per unit time that is 5 to 40% by weight. The raw material supply device 12 that continuously supplies the acrylic resin B set in the range of the above, and the molten polycarbonate resin C and the acrylic resin B that are supplied are continuously melted and mixed to generate and discharge the molten mixed resin C The transparent resin composition D is produced by continuously kneading the twin screw extruder 13, the single tube 14 through which the discharged molten mixed resin C flows, and the molten mixed resin C supplied from the single tube 14. A single screw extruder 15 is provided.
The twin-screw extruder 13 has a barrel 20 and two meshing screws 22 that are inserted through the inner hole 21 of the barrel 20 and rotate in the same direction while meshing with each other. A raw material supply port 23 that communicates with the inner hole 21 is provided at one end side in the longitudinal direction of the barrel 20 that is the base end side of the meshing screw 22. The polycarbonate resin A and the acrylic resin B are continuously supplied from the raw material supply devices 11 and 12 to the inner hole 21 through the raw material supply port 23. A single tube 14 is connected to the other end side in the longitudinal direction of the barrel 20 which is the tip end side of the meshing screw 22. A heater 24 for heating the barrel 20 is attached to the outer periphery of the barrel 20.
The meshing screw 22 is rotated by a drive motor (not shown). The polycarbonate resin A and the acrylic resin B, which are continuously supplied to the inner hole 21 through the raw material supply port 23, pass through the inner hole 21 of the barrel 20 from the base end side of the meshing screw 22 to the front end side. Conveyed continuously. During this passage, the polycarbonate resin A and the acrylic resin B are melted and mixed by rotation of the meshing screw 22 and heating of the heater 24 to become a molten mixed resin C.
The molten mixed resin C continuously discharged from the twin screw extruder 13 flows through the inner hole 30 of the tubular single tube 14 and is continuously supplied to the single screw extruder 15. In order to maintain the molten state of the molten mixed resin C, a heater 31 for heating the single tube 14 is attached to the outer periphery of the single tube 14.
The single-screw extruder 15 has a cylinder 40 and a kneading screw 42 that is inserted into an inner hole 41 of the cylinder 40. The kneading screw 42 has a shearing processing portion 43 at an intermediate portion in the longitudinal direction. Details of the shearing processing unit 43 will be described later. A molten resin supply port 44 that communicates with the inner hole 41 is provided on one end side in the longitudinal direction of the cylinder 40, which is the base end side of the kneading screw 42. The single pipe 14 and the cylinder 40 are connected so that the inner hole 30 and the molten resin supply port 44 communicate with each other, and the molten mixed resin C flowing through the single pipe 14 is continuously supplied to the inner hole 41 through the molten resin supply port 44. The A die 45 is provided on the other end side in the longitudinal direction of the cylinder 40 which is the tip end side of the kneading screw 42. A heater 46 for heating the cylinder 40 is attached to the outer periphery of the cylinder 40.
FIG. 2 is a schematic view of the kneading screw 42 of the single-screw extruder 15 applied when carrying out the method for producing a transparent resin composition of the present invention.
The kneading screw 42 has a shearing processing portion 43 in the middle portion in the longitudinal direction, and a peak diameter and a valley diameter are between the proximal end portion and the shearing processing portion 43 and between the shearing processing portion 43 and the distal end portion. A feed flight 47 having a constant value is formed. The shear processing unit 42 has a reverse feed flight 48 formed continuously in the direction opposite to the twist direction of the feed flight 47. The reverse feed flight 48 is not less than 2 peaks and not more than 5 peaks, and there is no groove or notch between one end and the other end thereof, and it is continuously formed uniformly.
The molten mixed resin C, which flows through the single pipe 14 and is continuously supplied from the molten resin supply port 44 to the inner hole 41 of the cylinder 40, is removed from the base end portion by a kneading screw 42 rotated by a drive motor (not shown). It is conveyed to the shear processing unit 43. In the shearing processing unit 43, the molten mixed resin C passes between the peripheral wall of the inner hole 41 and the outer periphery of the reverse flight 48. During this passage, the melt-mixed resin C is kneaded by being subjected to a shearing action, and the acrylic resin is uniformly and densely dispersed in the polycarbonate resin, so that a transparent resin composition D containing the polycarbonate resin and the acrylic resin is generated. .
The produced transparent resin composition D is conveyed from the shearing portion 43 of the kneading screw 22 to the tip portion, and is discharged to a resin flow path communicating with a die 45 connected to the tip of the single screw extruder 15. Then, the transparent resin composition D is extruded while being shaped into a predetermined shape by the die 45.
FIG. 3 is a schematic view showing another embodiment of the kneading screw 42 of the single-screw extruder 15 applied when carrying out the method for producing a transparent resin composition of the present invention.
The kneading screw 42 has a shearing processing portion 43 in the middle portion in the longitudinal direction, and a peak diameter and a valley diameter are between the proximal end portion and the shearing processing portion 43 and between the shearing processing portion 43 and the distal end portion. A feed flight 47 having a constant value is formed. The shearing processing unit 43 has an annular protrusion 49 that is erected with respect to the radial direction of the kneading screw 42 and is continuously formed in the circumferential direction. The annular protrusion 49 has no grooves or notches in the circumferential direction, and is formed continuously and uniformly.
The supplied molten mixed resin C that flows through the single pipe 14 and is continuously supplied from the molten resin supply port 44 to the inner hole 41 of the cylinder 40 is driven by a kneading screw 42 that is rotated by a drive motor (not shown). To the shearing processing unit 43. In the shearing processing unit 43, the molten mixed resin C passes between the peripheral wall of the inner hole 41 and the outer periphery of the annular protrusion 49. During this passage, the melt-mixed resin C is kneaded by being subjected to a shearing action, and the acrylic resin is uniformly and densely dispersed in the polycarbonate resin, so that a transparent resin composition D containing the polycarbonate resin and the acrylic resin is generated. .
The produced transparent resin composition D is conveyed from the shearing portion 43 of the kneading screw 22 to the tip portion, and is discharged to a resin flow path communicating with a die 45 connected to the tip of the single screw extruder 15. Then, the transparent resin composition D is extruded while being shaped into a predetermined shape by the die 45.
The outer diameter of the kneading screw 42 of the single-screw extruder 15 is larger than the outer diameter of the meshing screw 22 of the twin-screw extruder 13. Further, the shearing unit 43 may be provided not only at one place in the longitudinal direction of the kneading screw but also at a plurality of places depending on the situation.
Next, the manufacturing method of the transparent resin composition of this invention is demonstrated.
The polycarbonate resin A as a raw material is charged into the raw material supply device 11 of the manufacturing apparatus 10, and the acrylic resin B as a raw material is charged into the raw material supply device 12. The polycarbonate resin A is weighed by the raw material supply device 11 set to supply a predetermined amount in a range of 95 to 60% by weight per unit time, and continuously supplied to the twin screw extruder 13. Similarly, the acrylic resin B is also measured by the raw material supply device 12 set to supply a predetermined amount in the range of 5 to 40% by weight per unit time and continuously supplied to the twin-screw extruder 13. The
The polycarbonate resin A and the acrylic resin B continuously supplied to the inner hole 21 of the barrel 20 of the twin-screw extruder 13 are melted and conveyed while being transported to the tip end side by two meshing screws 22 rotated by a drive motor. Mixed. At this time, the temperature of the barrel 20 is set to 240 to 300 ° C., and the rotational speed of the meshing screw 22 is set to 50 to 600 rpm.
The twin-screw extruder 13 continuously generates a liquid-phase molten mixed resin C from a solid-phase polycarbonate resin A and an acrylic resin B. At this stage, the melt-mixed resin C is in a state in which the acrylic resin B is not uniformly and densely dispersed in the polycarbonate resin A but is clouded.
The molten mixed resin C discharged from the twin screw extruder 13 is continuously supplied to the single screw extruder 15 through the inner hole 30 of the single pipe 14 without being released into the atmosphere. The single tube 14 is heated by the heater 31 whose heating temperature is set to 220 to 280 ° C. so that the molten mixed resin C maintains a molten state.
The melt-mixed resin C continuously supplied to the inner hole 41 of the cylinder 40 of the single-screw extruder 15 is sheared by a kneading screw 42 that is rotated by a drive motor and provided at an intermediate portion from the base end side. It is conveyed to. At this time, the temperature of the cylinder 40 is set to 220 to 280 ° C., and the rotational speed of the kneading screw 42 is set to 500 rpm to 4000 rpm.
The outer diameter of the kneading screw 42 of the single screw extruder 15 is larger than the outer diameter of the meshing screw 22 of the twin screw extruder 13, and the rotational speed of the kneading screw 42 is set to be 500 rpm to 4000 rpm. The melt-mixed resin C that is continuously supplied is conveyed in an unfilled state, not in a full state between the feed flights 47 of the kneading screw 42. And since the crest diameter and trough diameter of the sending flight 47 are made into the constant value, it is conveyed in the stable state.
The melt-mixed resin C that has reached the shearing processing unit 43 is composed of the outer periphery of the shearing processing unit 43 that rotates at 500 rpm to 4000 rpm higher than the screw rotation speed of a single-screw extruder set by general extrusion molding, and the inside of the cylinder 40. When passing between the peripheral walls of the holes 41, the resin is kneaded with a strong shearing action in a short time, and the acrylic resin B is uniformly and densely dispersed in the polycarbonate resin A. The polycarbonate resin A and the acrylic resin B are dispersed. The transparent resin composition D containing is produced | generated.
The produced transparent resin composition D is stably conveyed to the tip by a feed flight 47 having a constant crest diameter and trough diameter, and is extruded from a die 45 forming a predetermined shape.
The method for producing the transparent resin composition of the present invention is responsible for the step of melting and mixing the former twin-screw extruder 13 of the production apparatus 10 and the step of kneading the latter single-screw extruder 15. The manufacturing conditions including the rotational speed of the meshing screw 22 at the time of mixing and the manufacturing conditions including the rotational speed of the kneading screw 42 at the time of kneading that gives a strong shearing action in a short time can be individually set while associating them. Therefore, stable and continuous production is possible.

次に、実施例および比較例により、さらに説明する。
［実施例１］
本発明の透明樹脂組成物の製造方法を実施するにあたり、製造装置１０の前段の溶融および混合する工程を担う二軸押出機１３として、噛み合いスクリュ２２の外径の呼び径が１８ｍｍである東芝機械株式会社製の二軸押出機、型式ＴＥＭ−１８ＳＳを準備し、後段の混練する工程を担う単軸押出機１５として、混練用スクリュ４２の外径の呼び径が３６ｍｍである東芝機械株式会社製の単軸押出機、型式ＳＥ−３６ＳＰを準備し、単管１４にて二軸押出機、型式ＴＥＭ−１８ＳＳと単軸押出機、型式ＳＥ−３６ＳＰを接続した。
二軸押出機１３の噛み合いスクリュ２２は、スクリュの外径に対するスクリュの長さを４８とした。単軸押出機１５の混練用スクリュ４２は、スクリュの外径に対するスクリュの長さを８とし、せん断処理部４３として、混練用スクリュ４２の長手方向の離間した２か所に逆送りフライト４８を配置した。シリンダ４０の内孔４１の周壁と逆送りフライト４８の外周との間の隙間を０．３ｍｍとした。二軸押出機１３のバレル２０の温度を２６０℃、単軸押出機１５のシリンダ４０の温度を２６０℃、単管１４の温度を２６０℃に設定した。
二軸押出機１３に供給するポリカーボネート樹脂Ａは帝人株式会社製のパンライトＬ−１２５０Ｙを、アクリル樹脂Ｂは三菱レイヨン株式会社製のアクリペットＶＨ００１を用いた。原料供給装置１１にてポリカーボネート樹脂Ａを毎時８Ｋｇ供給し、原料供給装置１２にてアクリル樹脂Ｂを毎時２Ｋｇ供給し、二軸押出機１３の噛み合いスクリュ２２の回転数を２００ｒｐｍとして溶融および混合し、単軸押出機１５の混練用スクリュ４２の回転数を２８００ｒｐｍとして混練し、ダイ４５より、毎時１０Ｋｇ（毎分約１６７ｇ）のポリカーボネート樹脂Ａとアクリル樹脂Ｂを含む樹脂組成物を得た。得られた樹脂組成物を目視にて評価したところ、白濁は見られず、透明であった。
［実施例２］
実施例１の製造装置１０に対し、せん断処理部４３として、混練用スクリュ４２の長手方向の離間した２か所に円環状突出部４９を配置した。
原料供給装置１１にてポリカーボネート樹脂Ａを毎時８Ｋｇ供給し、原料供給装置１２にてアクリル樹脂Ｂを毎時２Ｋｇ供給し、二軸押出機１３の噛み合いスクリュ２２の回転数を２００ｒｐｍとして溶融および混合し、単軸押出機１５の混練用スクリュ４２の回転数を２８００ｒｐｍとして混練し、ダイ４５より、毎時１０Ｋｇ（毎分約１６７ｇ）のポリカーボネート樹脂Ａとアクリル樹脂Ｂを含む樹脂組成物を得た。得られた樹脂組成物を目視にて評価したところ、白濁は見られず、透明であった。
［比較例１］
スクリュ外形の呼び径が１８ｍｍである東芝機械株式会社製の二軸押出機、型式ＴＥＭ−１８ＳＳを準備し、２本の噛み合いスクリュの中にニーディングディスクを配置した。
スクリュの回転数を３００ｒｐｍから１２００ｒｐｍまで変化させて、押し出されるポリカーボネート樹脂Ａとアクリル樹脂Ｂを含む樹脂組成物を観察したが、常に白濁しており、透明にはならなかった。なお、本比較例では、スクリュの回転数が１２００ｒｐｍの時点で、予熱不足の状態でポリカーボネート樹脂Ａとアクリル樹脂Ｂがニーディングディスクに到達して異音と振動が発生し、生成された樹脂組成物にも極端な粘度低下が見られたため、それを超える回転数での運転を中止した。
実施例１、実施例２と比較例１との比較から分かるように、本発明の透明樹脂組成物の製造方法により連続して製造されたポリカーボネート樹脂とアクリル樹脂を含む樹脂組成物は、白濁が見られず、透明となり、均一かつ密に分散されていることが分かる。 Next, the present invention will be further described with reference to examples and comparative examples.
[Example 1]
In carrying out the method for producing a transparent resin composition of the present invention, as a twin-screw extruder 13 responsible for the previous melting and mixing process of the production apparatus 10, a Toshiba machine with a nominal diameter of the outer diameter of the meshing screw 22 of 18 mm As a single-screw extruder 15 that prepares a twin screw extruder, model TEM-18SS, and performs the subsequent kneading process, the outer diameter of the kneading screw 42 is 36 mm. A single screw extruder, model SE-36SP was prepared, and a single screw 14 was connected to a twin screw extruder, model TEM-18SS, and a single screw extruder, model SE-36SP.
The meshing screw 22 of the twin screw extruder 13 has a screw length of 48 with respect to the outer diameter of the screw. The kneading screw 42 of the single screw extruder 15 has a screw length of 8 with respect to the outer diameter of the screw, and the shearing processing portion 43 is provided with back feed flights 48 at two spaced locations in the longitudinal direction of the kneading screw 42. Arranged. A gap between the peripheral wall of the inner hole 41 of the cylinder 40 and the outer periphery of the reverse flight 48 was set to 0.3 mm. The temperature of the barrel 20 of the twin screw extruder 13 was set to 260 ° C, the temperature of the cylinder 40 of the single screw extruder 15 was set to 260 ° C, and the temperature of the single tube 14 was set to 260 ° C.
The polycarbonate resin A supplied to the twin-screw extruder 13 was Panlite L-1250Y manufactured by Teijin Limited, and the acrylic resin B was Acrypet VH001 manufactured by Mitsubishi Rayon Co., Ltd. The raw material supply device 11 supplies polycarbonate resin A at 8 Kg / hour, the raw material supply device 12 supplies acrylic resin B at 2 Kg / hour, melts and mixes with the rotational speed of the meshing screw 22 of the twin screw extruder 13 at 200 rpm, The kneading screw 42 of the single screw extruder 15 was kneaded at a rotation speed of 2800 rpm, and a resin composition containing a polycarbonate resin A and an acrylic resin B at 10 kg / hr (about 167 g / min) was obtained from the die 45. When the obtained resin composition was visually evaluated, no cloudiness was seen and the resin composition was transparent.
[Example 2]
With respect to the manufacturing apparatus 10 of Example 1, the annular protrusions 49 were arranged as two shearing portions 43 in the longitudinal direction of the kneading screw 42 in the longitudinal direction.
The raw material supply device 11 supplies polycarbonate resin A at 8 Kg / hour, the raw material supply device 12 supplies acrylic resin B at 2 Kg / hour, melts and mixes with the rotational speed of the meshing screw 22 of the twin screw extruder 13 at 200 rpm, The kneading screw 42 of the single screw extruder 15 was kneaded at a rotation speed of 2800 rpm, and a resin composition containing a polycarbonate resin A and an acrylic resin B at 10 kg / hr (about 167 g / min) was obtained from the die 45. When the obtained resin composition was visually evaluated, no cloudiness was seen and the resin composition was transparent.
[Comparative Example 1]
A twin-screw extruder manufactured by Toshiba Machine Co., Ltd., having a nominal diameter of 18 mm, model TEM-18SS was prepared, and a kneading disk was placed in the two meshing screws.
The screw composition was changed from 300 rpm to 1200 rpm, and the extruded resin composition containing the polycarbonate resin A and the acrylic resin B was observed. However, the resin composition was always cloudy and did not become transparent. In this comparative example, when the number of rotations of the screw is 1200 rpm, the polycarbonate resin A and the acrylic resin B reach the kneading disk in a state of insufficient preheating, and abnormal noise and vibration are generated. Since the viscosity of the product was drastically reduced, operation at a higher rotational speed was stopped.
As can be seen from the comparison between Example 1, Example 2 and Comparative Example 1, the resin composition containing the polycarbonate resin and the acrylic resin continuously produced by the method for producing the transparent resin composition of the present invention has white turbidity. It can be seen that it is not seen and is transparent and uniformly and densely dispersed.

１０ 製造装置
１１ 原料供給装置
１２ 原料供給装置
１３ 二軸押出機
１４ 単管
１５ 単軸押出機
２０ バレル
２１ 内孔
２２ 噛み合いスクリュ
２３ 原料供給口
２４ ヒータ
３０ 内孔
３１ ヒータ
４０ シリンダ
４１ 内孔
４２ 混練用スクリュ
４３ せん断処理部
４４ 溶融樹脂供給口
４５ ダイ
４６ ヒータ
４７ 送りフライト
４８ 逆送りフライト
４９ 円環状突出部 DESCRIPTION OF SYMBOLS 10 Manufacturing apparatus 11 Raw material supply apparatus 12 Raw material supply apparatus 13 Twin screw extruder 14 Single pipe 15 Single screw extruder 20 Barrel 21 Inner hole 22 Meshing screw 23 Raw material supply port 24 Heater 30 Inner hole 31 Heater 40 Cylinder 41 Inner hole 42 Kneading Screw 43 for shearing process 44 Molten resin supply port 45 Die 46 Heater 47 Feeding flight 48 Reverse feeding flight 49 Annular projection

Claims (5)

ポリカーボネート樹脂とアクリル樹脂を含む透明樹脂組成物の製造方法であって、前記ポリカーボネート樹脂９５〜６０重量％と前記アクリル樹脂５〜４０重量％を二本の噛み合いスクリュが６００ｒｐｍ以下で同方向に回転する二軸押出機に連続的に供給し、溶融および混合して前記ポリカーボネート樹脂と前記アクリル樹脂の溶融混合樹脂を生成し、前記二軸押出機より連続して吐出される前記溶融混合樹脂を、引き続き、基端部から先端部に向けて送りフライトが形成され中間部にせん断処理部が設けられた混練用スクリュと該混練用スクリュを回転可能に挿通するシリンダを有する単軸押出機に供給し、５００ｒｐｍ以上かつ４０００ｒｐｍ以下で回転する前記せん断処理部により前記溶融混合樹脂を混練して透明樹脂組成物を生成し、前記単軸押出機より前記透明樹脂組成物を連続して吐出することを特徴とする透明樹脂組成物の製造方法。 A method for producing a transparent resin composition comprising a polycarbonate resin and an acrylic resin, wherein the two meshing screws rotate in the same direction at a speed of 600 rpm or less between 95 to 60% by weight of the polycarbonate resin and 5 to 40% by weight of the acrylic resin. Continuously supplied to a twin screw extruder, melted and mixed to produce a molten mixed resin of the polycarbonate resin and the acrylic resin, and the molten mixed resin continuously discharged from the twin screw extruder, The feed flight is formed from the base end portion toward the tip end portion and is supplied to a single screw extruder having a kneading screw in which a shearing processing portion is provided in the middle portion and a cylinder through which the kneading screw is rotatably inserted, The molten mixed resin is kneaded by the shearing section rotating at 500 rpm or more and 4000 rpm or less to produce a transparent resin composition. , The method for producing a transparent resin composition which is characterized by discharging the said transparent resin composition than a single-screw extruder continuously. 前記せん断処理部は前記送りフライトのねじれの向きと逆の向きに連続して形成された逆送りフライトを有し、前記溶融混合樹脂が前記シリンダの内壁と回転する前記逆送りフライトの外周との間の隙間を通過する際に混練されることを特徴とする請求項１に記載の透明樹脂組成物の製造方法。 The shearing unit has a reverse feed flight formed continuously in a direction opposite to the twist direction of the feed flight, and the molten mixed resin rotates between the inner wall of the cylinder and the outer periphery of the reverse feed flight. 2. The method for producing a transparent resin composition according to claim 1, wherein the kneading is performed when passing through a gap between the transparent resin compositions. 前記せん断処理部は前記混練用スクリュの半径方向に立設されかつ周方向に連続して形成された円環状突出部を有し、前記溶融混合樹脂が前記シリンダの内壁と回転する前記円環状突出部の外周との間の隙間を通過する際に混練されることを特徴とする請求項１に記載の透明樹脂組成物の製造方法。 The shearing unit has an annular projecting portion that is erected in the radial direction of the kneading screw and is continuously formed in the circumferential direction, and the molten projecting resin rotates with the inner wall of the cylinder. The method for producing a transparent resin composition according to claim 1, wherein the transparent resin composition is kneaded when passing through a gap between the outer periphery of the part. 前記送りフライトは一定の山径と谷径に形成されており、供給される前記溶融混合樹脂を前記混練用スクリュの基端部から前記せん断処理部に搬送し、生成された前記透明樹脂組成物を前記せん断処理部から前記混練用スクリュの先端部に搬送することを特徴とする請求項１乃至３に記載の透明樹脂組成物の製造方法。 The feed flight is formed to have a constant crest diameter and trough diameter, and the supplied molten mixed resin is transported from the base end of the kneading screw to the shearing section, and the generated transparent resin composition The method for producing a transparent resin composition according to any one of claims 1 to 3, wherein the material is conveyed from the shearing unit to a tip of the kneading screw. 前記混練用スクリュの外径は前記噛み合いスクリュの外径よりも大きく、供給される溶融混合樹脂は非充満状態で搬送されることを特徴とする請求項１乃至４に記載の透明樹脂組成物の製造方法。 5. The transparent resin composition according to claim 1, wherein an outer diameter of the kneading screw is larger than an outer diameter of the meshing screw, and the supplied molten mixed resin is conveyed in an unfilled state. Production method.
JP2013268210A 2013-12-26 2013-12-26 Method for producing transparent resin composition containing polycarbonate resin and acrylic resin Active JP5659288B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2013268210A JP5659288B1 (en) 2013-12-26 2013-12-26 Method for producing transparent resin composition containing polycarbonate resin and acrylic resin
PCT/JP2014/081584 WO2015098428A1 (en) 2013-12-26 2014-11-28 Method for producing transparent resin composition
DE112014006029.1T DE112014006029B4 (en) 2013-12-26 2014-11-28 Process for producing a transparent resin composition
CN201480070667.7A CN105873736B (en) 2013-12-26 2014-11-28 The manufacture method of transparent resin composition
KR1020167016503A KR101837878B1 (en) 2013-12-26 2014-11-28 Method for producing transparent resin composition
TW103145506A TWI547359B (en) 2013-12-26 2014-12-25 Method for producing transparent resin composition
US15/192,359 US9688001B2 (en) 2013-12-26 2016-06-24 Method of manufacturing transparent resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013268210A JP5659288B1 (en) 2013-12-26 2013-12-26 Method for producing transparent resin composition containing polycarbonate resin and acrylic resin

Publications (2)

Publication Number Publication Date
JP5659288B1 true JP5659288B1 (en) 2015-01-28
JP2015123622A JP2015123622A (en) 2015-07-06

Family

ID=52437491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013268210A Active JP5659288B1 (en) 2013-12-26 2013-12-26 Method for producing transparent resin composition containing polycarbonate resin and acrylic resin

Country Status (7)

Country Link
US (1) US9688001B2 (en)
JP (1) JP5659288B1 (en)
KR (1) KR101837878B1 (en)
CN (1) CN105873736B (en)
DE (1) DE112014006029B4 (en)
TW (1) TWI547359B (en)
WO (1) WO2015098428A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6550253B2 (en) 2014-04-24 2019-07-24 東芝機械株式会社 Screw for extruder, extruder and extrusion method
JP6527742B2 (en) 2014-04-24 2019-06-05 東芝機械株式会社 Screw for extruder, extruder and extrusion method
JP6639799B2 (en) 2014-05-08 2020-02-05 東芝機械株式会社 Kneading device and kneading method
JP6639798B2 (en) * 2014-05-08 2020-02-05 東芝機械株式会社 Screw for extruder, extruder and extrusion method
JP6639800B2 (en) * 2014-05-08 2020-02-05 東芝機械株式会社 Screw for extruder, extruder and extrusion method
JP6446234B2 (en) * 2014-10-27 2018-12-26 東芝機械株式会社 Screw for extruder, screw element, extruder and extrusion method
JP6464025B2 (en) 2015-04-28 2019-02-06 東芝機械株式会社 Screw for extruder, extruder and extrusion method
JP6746278B2 (en) 2015-04-28 2020-08-26 芝浦機械株式会社 Extruder screw, extruder and extrusion method
WO2017057117A1 (en) * 2015-10-02 2017-04-06 帝人株式会社 Resin composition and film formed from same
CN106743213A (en) * 2017-04-01 2017-05-31 南京锎巴新材料科技有限公司 A kind of twin-screw for being stirred for highly viscous slurry grinding distribution and being conveyed
CN108481702A (en) * 2018-06-21 2018-09-04 浙江秦山电缆有限公司 A kind of automatically feed cable extruding machine
CN114907657A (en) * 2022-05-31 2022-08-16 浙江南洋科技有限公司 Reactive extrusion method biaxially oriented polyvinyl alcohol film and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010061872A1 (en) * 2008-11-26 2010-06-03 独立行政法人産業技術総合研究所 Method of melt kneading, extrudate, and transparent resin material
JP2012051997A (en) * 2010-08-31 2012-03-15 Sumitomo Chemical Co Ltd Method of manufacturing resin composition, resin composition, and molding
JP2012167195A (en) * 2011-02-15 2012-09-06 Sumitomo Chemical Co Ltd Method for producing resin composition, resin composition and molded article
JP2012201832A (en) * 2011-03-28 2012-10-22 Sumitomo Chemical Co Ltd Process for producing resin composition and resin composition

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719239A1 (en) 1987-06-06 1988-12-15 Roehm Gmbh COMPATIBLE POLYCARBONATE-POLYMETHACRYLATE MIXTURES
DE3722050A1 (en) 1987-07-03 1989-01-19 Berstorff Gmbh Masch Hermann METHOD AND EXTRUDER SYSTEM FOR PRODUCING A FOAMABLE PLASTIC MIXTURE
JP3245258B2 (en) * 1993-04-27 2002-01-07 東レ・ダウコーニング・シリコーン株式会社 Continuous production method of heat-curable silicone rubber compound
DE10055190A1 (en) 2000-11-07 2002-05-16 Basf Ag Production of back-injected plastic moldings, e.g. vehicle parts, involves back-injection with a mixture of plastic and long glass fibres which is melt-compounded in a machine with a special mixing element
CN201077146Y (en) * 2007-07-16 2008-06-25 胡国川 Stepwise screw extrusion machine
US8158721B2 (en) 2008-06-13 2012-04-17 Exxonmobil Chemical Patents Inc. Process for preparing dynamically vulcanized alloys
WO2011013517A1 (en) * 2009-07-29 2011-02-03 東レ株式会社 Polymer alloy, process for proucing same, and molded article
CN202264380U (en) * 2011-09-21 2012-06-06 厦门集优新材料有限公司 Homonymous meshing extruding screw rod used for production of vinyl benzene thermoplastic elastomers
CN103073867B (en) * 2012-12-28 2015-03-11 东莞市普凯塑料科技有限公司 Light diffusion master batch for transparent plastics and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010061872A1 (en) * 2008-11-26 2010-06-03 独立行政法人産業技術総合研究所 Method of melt kneading, extrudate, and transparent resin material
JP2012051997A (en) * 2010-08-31 2012-03-15 Sumitomo Chemical Co Ltd Method of manufacturing resin composition, resin composition, and molding
JP2012167195A (en) * 2011-02-15 2012-09-06 Sumitomo Chemical Co Ltd Method for producing resin composition, resin composition and molded article
JP2012201832A (en) * 2011-03-28 2012-10-22 Sumitomo Chemical Co Ltd Process for producing resin composition and resin composition

Also Published As

Publication number Publication date
DE112014006029B4 (en) 2022-02-10
DE112014006029T5 (en) 2016-09-15
TW201538293A (en) 2015-10-16
JP2015123622A (en) 2015-07-06
CN105873736A (en) 2016-08-17
CN105873736B (en) 2018-01-02
KR20160089437A (en) 2016-07-27
US9688001B2 (en) 2017-06-27
US20160303766A1 (en) 2016-10-20
KR101837878B1 (en) 2018-03-12
TWI547359B (en) 2016-09-01
WO2015098428A1 (en) 2015-07-02

Similar Documents

Publication Publication Date Title
JP5659288B1 (en) Method for producing transparent resin composition containing polycarbonate resin and acrylic resin
TWI818021B (en) Kneading method for conductive composite material
US20170225360A1 (en) Extruder and kneading device
US9630345B2 (en) Integrated single and twin screw extruder
WO2015156230A1 (en) Extruder screw, extruder and extrusion method
JP2004509793A (en) Method for regenerating and / or processing elastomer mixed with multi-screw extruder and filler
US9102091B2 (en) Twin screw extruder
JP4968828B2 (en) Screw for resin extruder, resin extruder, and pellet manufacturing method
ITMI20080085A1 (en) SCREW FOR EXTRUDER, BEARING SEGMENT USED FOR THE SAME, AND EXTRUDER WITH DOUBLE SCREW EQUIPPED WITH THIS EXTRUDER SCREW
JP2002239360A (en) Apparatus for agitating treatment material
JP2009196303A (en) Kneading disk segment and twin-screw extruder
CN109049602A (en) It is a kind of for producing the single screw extrusion machine of starch plastics
JP2004534679A (en) Continuous production method of rubber mixture and its apparatus
CN202155160U (en) Conical dual-rotor continuous mixing unit
JP5678179B2 (en) Equipment for processing materials by mixing and / or plasticizing
CN214726303U (en) PLA straw extruder
JP2010280128A (en) Kneading device and molding machine
JP2005169764A (en) Kneader for plastic material
JPH0459220A (en) High speed extrusion method for thermoplastic resin
CN220008757U (en) Double-screw extrusion device
JPH09141726A (en) Method and apparatus for extrusion molding of vinyl chloride molded product
JP2008132703A (en) Screw for resin extruder, resin extruder and pelletizing method
CN112277290A (en) Double-cylinder plastic extruder
JP2004009338A (en) Plastic single screw extruder and manufacturing method for inorganic matter dispersed plastic
JP2005161775A (en) Uniaxial extruder for plastic material and method for producing inorganic substance-dispersed plastic material

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20141107

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20141201

R150 Certificate of patent or registration of utility model

Ref document number: 5659288

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350